Home / 17,982-20,439

Finding the Third Proportional to 17,982 and 20,439

Calculator

Solution

The third proportional to 17,982 and 20,439 is: 23,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,982 : 20,439 = 20,439 : x
  2. Step 2: Convert to fraction form
    17,982/20,439 = 20,439/x
  3. Step 3: Cross multiply
    17,982x = 20,439 × 20,439
  4. Step 4: Simplify right side
    17,982x = 417,752,721
  5. Step 5: Solve for x
    x = 417,752,721/17,982
  6. Step 6: Final answer
    x = 23,231.72

Related Problems

Find third proportional to 8,991 and 10,219.50
Half scale
Find third proportional to 35,964 and 40,878
Double scale
Find third proportional to 17,984 and 20,441
Similar ratio
Find third proportional to 26,973 and 30,658.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.